Transcript

The doctors say that I'm unable to discern fantasy from reality... but I think I know what's going on around here. I saw those demons murder the other patients. I want to escape from this cursed place but I don't dare venture into the light.

It seems that they are attracted to light. That's why people who need light to see are their natural prey. They also react strongly to sound. If you want to go on living, you'd be better off just sitting in the dark and staying quiet. But even that probably won't save you.